earthquake 3 Flashcards
are also know as sliding boundaries. They occur when plates slide creating a break in the earth’s surface. This can create a cliff and often causes earthquakes along faults.
Transform boundaries
is a roughly 25,000-mile chain of volcanoes and seismically active sites
that outline the Pacific Ocean.
The Ring of Fire
, the Ring of Fire traces the meeting points of
many tectonic plates, including the Eurasian, North American, Juan de Fuca, Cocos,
Caribbean, Nazca, Antarctic, Indian, Australian, Philippine, and other smaller plates,
which all encircle the large Pacific Plate.
the Circum-Pacific Belt
boundaries where the plates meet, called
fault lines
This movement results in deep ocean trenches, volcanic eruptions, and
earthquake epicenters along the boundaries where the plates meet
plates are constantly sliding past, colliding into, or moving above or below each
other
A is a crack or fracture in the Earth’s crust where blocks of rock have moved
relative to each other due to tectonic forces.
fault
is the trace or line where this fault is visible on the Earth’s
surface. It’s the visible or mapped line where the fault intersects the Earth’s surface.
Fault line
: The actual fracture surface along which the movement occurs.
Fault Plane
types of faults
normal
reverse
strike and slip
Occurs when the crust is being pulled apart, causing one block to
move downward relative to the other.
normal fault
